Okuma 3030/8618 alarm: Spindle alarm/overload

Okuma detects a fault or overload on the main spindle. It is an alarm from the Spindle area, and in the catalog it is listed as “Spindle alarm/overload”. On the machine you notice it like this: The spindle stops, Carga alta, Fails when starting or cutting.

On the shop floor it almost always comes from one of these causes: Worn tool, Carga excesiva, Spindle drive, Motor/cooling. Rule out the most likely one on your machine first, before touching parameters or swapping anything.

Reset with the spindle stopped after removing the load cause. Resetting without fixing the cause first only hides the problem: Okuma 3030/8618 trips again and, in the meantime, you keep working with the machine in bad shape.

With the machine stopped and in a safe state, start with these checks: Check load, tool and RPM, Test with no load if it is safe, Anotar drive alarm. That alone will tell you whether it is the program or whether you need to raise a maintenance job.

With Okuma 3030/8618 active, avoid this: Do not bypass safety devices, Do not manipulate energized electrical cabinet, Do not continue producing if the alarm reappears. Skipping any of these points is what turns a minor stop into an expensive breakdown.

If it appears with no load or there is a drive fault. If you are not sure how far it goes, stop the machine and report it: a repeat alarm always works out cheaper than a crash.

It is critical: there is a real risk of damage to the machine, the tool or a person. Leave the machine stopped, do not keep resetting it to see if it goes away, and call maintenance before producing again. Guidance reference. Always confirm the full text in the exact machine/control manual.